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| author | iwasaki <iwasaki@FreeBSD.org> | 2002-08-29 12:39:21 +0000 |
|---|---|---|
| committer | iwasaki <iwasaki@FreeBSD.org> | 2002-08-29 12:39:21 +0000 |
| commit | f3872b5db52561c99009ec5d27daca1d178a656d (patch) | |
| tree | a557f1b29743da15bfceca3fb061b38d28acda5d /sys/kern/subr_rman.c | |
| parent | f8c5ceb68d89549fc7c635ae8be730ed4dc1cca8 (diff) | |
| download | FreeBSD-src-f3872b5db52561c99009ec5d27daca1d178a656d.zip FreeBSD-src-f3872b5db52561c99009ec5d27daca1d178a656d.tar.gz | |
Add sanity check seeing if adjusted start address exceeds end address
after boundary and alignment adjustment.
Diffstat (limited to 'sys/kern/subr_rman.c')
| -rw-r--r-- | sys/kern/subr_rman.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/kern/subr_rman.c b/sys/kern/subr_rman.c index 85af088..7c5502e 100644 --- a/sys/kern/subr_rman.c +++ b/sys/kern/subr_rman.c @@ -232,6 +232,10 @@ rman_reserve_resource_bound(struct rman *rm, u_long start, u_long end, } while ((rstart & amask) != 0 && rstart < end && rstart < s->r_end); rend = ulmin(s->r_end, ulmax(rstart + count, end)); + if (rstart > rend) { + DPRINTF(("adjusted start exceeds end\n")); + continue; + } DPRINTF(("truncated region: [%#lx, %#lx]; size %#lx (requested %#lx)\n", rstart, rend, (rend - rstart + 1), count)); |
